What is feather edge finish line?

What is feather edge finish line?

Knife Edge or Feather Edge: As the name suggests it has a knife-edge or thin edge. Indications: Young patients, Metal restorations, MOD Onlay, Inaccessible areas, when the finish line extends to the cementum, the lingual surface of mandibular posterior teeth, pin ledge 3/4th quarter crown.

What are subgingival margins?

Subgingival margins very often mean bleeding gums, isolation problems, and the absence of a margin in enamel. With direct restorations, when margins are subgingival, placement of a matrix band, achieving isolation, and removing any excess material all become considerably more complex.

When should subgingival margins for Crown preparations be considered?

Subgingival margin placement is necessary for several reasons: to hide the margin on a discolored tooth, to hide the margin when a more opaque restoration is placed, to chase old restorations or decay, and sometimes to increase the amount of tooth structure for the restoration.

What is gingival finish line?

Chamfer • GPT- A Finish line design for tooth preparation in which the gingival aspect meets the external axial surface at an obtuse angle. • TYLMANN (1965): Concave extra coronal finish line that provides greater angulation than a knife-edge and less width than a shoulder.

What is a Cavosurface margin?

Cavosurface (margin): it’s the junction between the wall of the cavity and the surface of the tooth . Enamel wall: is that portion of the prepared cavity wall , consisting of enamel .

What is the difference between Supragingival and subgingival?

Supragingival plaque is bacteria adherent above the gingiva, whereas bacteria below the gingiva is called subgingival plaque.

How is gum disease caused?

Gum disease is caused by a build-up of plaque on the teeth. Plaque is a sticky substance that contains bacteria. Some bacteria in plaque are harmless, but some are harmful for the health of your gums. If you do not remove plaque from your teeth by brushing them, it builds up and irritates your gums.

Which instrument is used to remove subgingival calculus?

Periodontal curettes

Should calculus be removed?

Dental calculus is mineralized plaque; because it is porous, it can absorb various toxic products that can damage the periodontal tissues. Hence, calculus should be accurately detected and thoroughly removed for adequate periodontal therapy.

Which toothpaste removes tartar?

Sensodyne Tartar Control toothpaste for sensitive teeth works deep inside the tooth to soothe painful tooth sensitivity* and helps keep that pain from coming back while also fighting tartar build-up.

What color is calculus?

Subgingival calculus is most often brown, black or green in color from its chronic exposure to gingival crevicular fluid, blood and blood breakdown products. It is frequently associated with the development of the pyogenic granuloma, an epulis-like lesion on the gingiva.

Can I remove calculus at home?

Clean using Baking soda– A mixture of baking soda and salt is an effective home remedy for dental calculus removal. Brushing your teeth with baking soda and salt softens the calculus, making it easy to remove. The mixture should smoothly be scrubbed on the teeth by using a toothbrush.

How can I remove calculus from my teeth naturally?

Here’s how:

1. Brush regularly, twice a day for 2 minutes a time.
2. Studies have found that electronic, or powered, toothbrushes may get rid of plaque better than manual models.
3. Choose tartar-control toothpaste with fluoride.
4. Floss, floss, floss.
5. Rinse daily.
6. Watch your diet.
7. Don’t smoke.